/** 
 * Kendo UI v2016.3.1118 (http://www.telerik.com/kendo-ui)                                                                                                                                              
 * Copyright 2016 Telerik AD. All rights reserved.                                                                                                                                                      
 *                                                                                                                                                                                                      
 * Kendo UI commercial licenses may be obtained at                                                                                                                                                      
 * http://www.telerik.com/purchase/license-agreement/kendo-ui-complete                                                                                                                                  
 * If you do not own a commercial license, this file shall be governed by the trial license terms.                                                                                                      
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       
                                                                                                                                                                                                       

*/
(function (f, define) {
    define('kendo.touch', [
        'kendo.core',
        'kendo.userevents'
    ], f);
}(function () {
    var __meta__ = {
        id: 'touch',
        name: 'Touch',
        category: 'mobile',
        description: 'The kendo Touch widget provides a cross-platform compatible API for handling user-initiated touch events, multi-touch gestures and event sequences (drag, swipe, etc.). ',
        depends: [
            'core',
            'userevents'
        ]
    };
    (function ($, undefined) {
        var kendo = window.kendo, Widget = kendo.ui.Widget, proxy = $.proxy, abs = Math.abs, MAX_DOUBLE_TAP_DISTANCE = 20;
        var Touch = Widget.extend({
            init: function (element, options) {
                var that = this;
                Widget.fn.init.call(that, element, options);
                options = that.options;
                element = that.element;
                that.wrapper = element;
                function eventProxy(name) {
                    return function (e) {
                        that._triggerTouch(name, e);
                    };
                }
                function gestureEventProxy(name) {
                    return function (e) {
                        that.trigger(name, {
                            touches: e.touches,
                            distance: e.distance,
                            center: e.center,
                            event: e.event
                        });
                    };
                }
                that.events = new kendo.UserEvents(element, {
                    filter: options.filter,
                    surface: options.surface,
                    minHold: options.minHold,
                    multiTouch: options.multiTouch,
                    allowSelection: true,
                    fastTap: options.fastTap,
                    press: eventProxy('touchstart'),
                    hold: eventProxy('hold'),
                    tap: proxy(that, '_tap'),
                    gesturestart: gestureEventProxy('gesturestart'),
                    gesturechange: gestureEventProxy('gesturechange'),
                    gestureend: gestureEventProxy('gestureend')
                });
                if (options.enableSwipe) {
                    that.events.bind('start', proxy(that, '_swipestart'));
                    that.events.bind('move', proxy(that, '_swipemove'));
                } else {
                    that.events.bind('start', proxy(that, '_dragstart'));
                    that.events.bind('move', eventProxy('drag'));
                    that.events.bind('end', eventProxy('dragend'));
                }
                kendo.notify(that);
            },
            events: [
                'touchstart',
                'dragstart',
                'drag',
                'dragend',
                'tap',
                'doubletap',
                'hold',
                'swipe',
                'gesturestart',
                'gesturechange',
                'gestureend'
            ],
            options: {
                name: 'Touch',
                surface: null,
                global: false,
                fastTap: false,
                filter: null,
                multiTouch: false,
                enableSwipe: false,
                minXDelta: 30,
                maxYDelta: 20,
                maxDuration: 1000,
                minHold: 800,
                doubleTapTimeout: 800
            },
            cancel: function () {
                this.events.cancel();
            },
            destroy: function () {
                this.events.destroy();
            },
            _triggerTouch: function (type, e) {
                if (this.trigger(type, {
                        touch: e.touch,
                        event: e.event
                    })) {
                    e.preventDefault();
                }
            },
            _tap: function (e) {
                var that = this, lastTap = that.lastTap, touch = e.touch;
                if (lastTap && touch.endTime - lastTap.endTime < that.options.doubleTapTimeout && kendo.touchDelta(touch, lastTap).distance < MAX_DOUBLE_TAP_DISTANCE) {
                    that._triggerTouch('doubletap', e);
                    that.lastTap = null;
                } else {
                    that._triggerTouch('tap', e);
                    that.lastTap = touch;
                }
            },
            _dragstart: function (e) {
                this._triggerTouch('dragstart', e);
            },
            _swipestart: function (e) {
                if (abs(e.x.velocity) * 2 >= abs(e.y.velocity)) {
                    e.sender.capture();
                }
            },
            _swipemove: function (e) {
                var that = this, options = that.options, touch = e.touch, duration = e.event.timeStamp - touch.startTime, direction = touch.x.initialDelta > 0 ? 'right' : 'left';
                if (abs(touch.x.initialDelta) >= options.minXDelta && abs(touch.y.initialDelta) < options.maxYDelta && duration < options.maxDuration) {
                    that.trigger('swipe', {
                        direction: direction,
                        touch: e.touch
                    });
                    touch.cancel();
                }
            }
        });
        kendo.ui.plugin(Touch);
    }(window.kendo.jQuery));
    return window.kendo;
}, typeof define == 'function' && define.amd ? define : function (a1, a2, a3) {
    (a3 || a2)();
}));